11567957 has 2 divisors, whose sum is σ = 11567958. Its totient is φ = 11567956.

The previous prime is 11567921. The next prime is 11567977. The reversal of 11567957 is 75976511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11566801 + 1156 = 3401^2 + 34^2 .

It is a cyclic number.

It is not a de Polignac number, because 11567957 - 2⁶ = 11567893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11567977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5783978 + 5783979.

It is an arithmetic number, because the mean of its divisors is an integer number (5783979).

Almost surely, 2^11567957 is an apocalyptic number.

It is an amenable number.

11567957 is a deficient number, since it is larger than the sum of its proper divisors (1).

11567957 is an equidigital number, since it uses as much as digits as its factorization.

11567957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66150, while the sum is 41.

The square root of 11567957 is about 3401.1699457687. The cubic root of 11567957 is about 226.1616107223.

The spelling of 11567957 in words is "eleven million, five hundred sixty-seven thousand, nine hundred fifty-seven".